Adjustable flood and spot light.



W. J. DAVIS, JR. & A. P. NIRDLINGER.

ADJUSTABLE FLOOD AND SPOT LIGHT.

APPLICATION man Nov. 2, 1914.

mmmm Patented May 25, 1915.

3 SHEETS-SHEET 1.

@d A fww vv.1. bAv|s,1R.& A. P. NlRDLlNGER.

ADJUSTABLE FLOOD AND SPOTLIGHT.

APPLICATION I'ILED NOV. 2| I9I4.

Patented May 25, 1910.

lvl-@@g Y ssH T H T2 W. J. DAVIS, JR. & A. P. NIRDLINGER. ADJUSTABLE FLOOD AND SPDT L|GHT.

APPLICATION FILED NOV. 2| 1914. p

Patented May 25, 191D.

' 3 SHEETS-SHEET 3.

@www www@ 40 Like. numbeis refer to similar parts 45 i great heat engendered in the use of the n enanas ramena onirica. I

WILLIAM J. DAvIs, JB., AND ALBERT r. IvInnLINGEn, or elmundo, ILLINOIS.

ADJUSTABLE FLoon Ann snort-,rena

l Patented May 25, 1915..

Application med November 2, m14. serial no. 869,901. i i

intenso.

To all whom it may concern:

Be it known that we, WiLLIAM J. DAVIS,

Jr., and ALBERT P. NIRDLINGER, citizens of a relatively adjustable reflector, so as to secure a comparatively eiiicient ydegree of concentration and projection of the rays; to ventilate the apparatus so employed, and to provide means for modifying the light so refiected by the interposition of various colored screens or transparencies in the path of the rays and means for revolving and tilting the apparatus to the desired focus. We accomplish such objects by means of the mechanism illustrated in the accompanying drawing, in which-f Figure 1 is a side elevation ofthe lantern, resting on afocusing pedestal. Fig. 2 lis a front elevation. Fig. 3 is a rear elevation. Fig. 4 is a section on line 4-.4 ofy Fig. 2. Fig, 5 is a section-on line 5-5 of F1g. 2. Fig. 6 is a cross section on line 6-6 of Fig. 1. Fig. '7 is an enlarged plan of detail of chimney showing lon slides. Fig. 8 is a section on line 8-8 of9 Fig. 7. Fig. 9 is an enlarged detail of lamp bracket on line 9-9 of Fig. 10. Fig. 10 is a section on line 10-10 of Fig. 9. Fig. 11 is an enlarged f section of adjustment of reflector on line 11-11 of Fig. 1. Fig. 12 is an enlarged elevation of chimney adjustment. Fig. 13 is an enlarged section on line 13-13 of Fig. 12.

throughout the several views.

In detail, the focal lantern shell 1 of the mechanism we preferably, make of metal suitably finished to stand the comparatively lamp. The shell 1 is provided with a projecting sleeve 2 and telescoping into the sleeve .finis the movable sleeve 3 which is providegijwith the hood 4 and which members 2, 3 and 4. form the chimney 5 which is adapted to ventilate the apparatus as shown by the course of the arrows under said hood. The ordinary contact socket 6 is adjustably connected tothe sleeve 3 by means of the brackets 7 7.,4 which are rigidly fixed tothe Specification of Letters Patent.

socket 6 and are operatively connected w' the sleeve 3 by means of thef screws 8, 8 which register with the threaded apertures 9, provided in the brackets and operatively reciprocate in the meshed slots 10, 10 provided in the sleeve 3 so as to permit the 'centering adjustment of the directions of the socket 6. The series of meshes forming the upper line of the slots 10 are adapted to per mit the raising of the brackets 7 by loosening the screws 8 at whatever point in the slots 10 the brackets should require to be secured. The Wires 11 pass Vfrom the contact in the socket through the roof of the hood 4. The lamp 12 screws in the ordinary way to the contact in the socket 6. A 1

mica. Washer 13 is interposed above the film 12a which forms the crater of the lamp to protect in a measure the upper members of.

the lamp and the contact, from the heat of the lamp. threaded lugs 14, which project outwardly through the tangent slots 15 provided in the sleeve 3 and secured by the thumbscrew 14 by which slots and lugs the manipulation of The sleeve 2 is provided with 1'.:

the sleeve by the grasp of the operator on the hood 4 imparts a combined rotary and longitudinal movement to the sleeve 3 so bearing the socket 6 and the lamp 12 attached as above described. The chimney 5 is movably connected with the shell l by means of the screws and lugs 16 and a number of operatively overlapping plates 16a and 16b which are operatively connected by means of the lugs 17 reciprocating in the slots 18 and are manipulated by means of the wheel 19 which is rigidly fixed to the threaded rod 20; the threads of the rod 2O register with threads provided in the aper-A ture of the lug 21 which is rigidly fixed to the shell land which .rod is provided with f a collar 22 which is operatively connected with the socket 23 forming a groove and pin joint and rigidly fixed tothe plate 16 so that the turning of the. rod 20 imparts a longitudinal movement to the chimney 5 and the lamp l2 thereto attached as above described, so that in operation the lamp 12 by means of the adjustment Vof the bracket 7 at the point of the screws 8 operating in the racks 10 with the relative combined romaybe suitably adjustedin .position before the reflector 24. The periphery 25 of the reflector 24 snugly fills the barrel of the shell 1. On the back of the reflector is provided a socket 26 which is adapted to receive the ball 27 forming the end of the threaded rod 28, which passes `through the threaded aperture 29 provided in the closure 30 of the shell 1 and which rod is provided with the wheel 31 suitable to the hand of the operator and by turning of which rod 28 the reflectormay be moved longitudinally in the barrelof the shell, to the limity of the slots 32 which are" provided in the shell 1 and which are adapted to receive the lugs 33.

The lugs 33'are rigidly fixed to the periphery 25 of the reflector 24 24 bearing the screws 38a. Behind the reflector 24 the closure 34 of the shell 1 is provided with a gallery of perforations 35 and with the vent 35"L for Ventilating the shell. Further ventilation is provided by the ventilators 36 which are attached longitudinally along the shell 1 by means of the fastenings 37, the ventilation occurring as indicated by the course and direction of the arrows. A lseries of metallic guides' 38 is attached to the muzzle of the shell 1 by means of the fastenings 39 and whichguides are adapted to receive various screens 40 which are raised and lowered at will in the path of the rays by means of the lines 41 pulleys 42 and buttons 42'* and which are raised by the'pull of the operator and lowered by gravity. The apparatus as a whole isv mounted upon the pedestal 43 which is provided with a socket 44 which is adapted to receive the horizontally revolving plug 45. The upper vstock 46 of the plug is expanded and is provided with an aperture 47 which is adapted to receive the goose neck 48 which is rigidly fixed to the shell by means of the fastenings 49; and which is adapted to rotate in a. vertical plane in said aperture 47 and is regulated and secured at the ywill lof the operator by means of the thumbscrew 50.'

In order that the reflector 24 may be adjusted to the desired radial focus'or posture any one or more of the series of screws 38 may be tightened or loosened 'to advance or retard the'movement of the corresponding segment of the reflector when the same shall be moved by means of the threaded rod by the turning of the handle 31.

The adjustment of the brackets 7 in the meshed slots 10 is intended primarily for roughly centering the xture 6' and lamp 12 so` that thefcrater 12l of the lamp initially will be as near as may be in the path of the focal center of the reflector when -the lamp isiirst suspended in said chimney. After the crater shall be lighted and the' focal aperture directed by means ofi the. gooseneck and swivel, to the desired object, the operator, to obtain a more exact adjustmentof the lighted crater f to the focalcenter `of thereflector seizes the rim of the hood 4 and the wheel 31 and reciprocally manipulates the same in manner and for the'purposes described.

We claim :l 1. In lanterns,

ventilated chimney which is operatively secured to said shell and adapted to project and adjust a lamp in said shell, a reiector interposed b etween said 1am and said closure and opposing said foca aperture and the combination with a` ventilated focal apertured shell which is provided with a closure, of an adjustable adapted te reiect the rays from the crater of said lamp and project the same through the focal aperture of said shell, means for centering and adjustin said lamp, and means for operating sai chimney substantially as described.

2. The combination with a focal apertured lantern shell, .of a hoodedv chimneywhich is formed of a number of operatively telescoping sleeves adapted for. expanding and contracting the height of said chimney and which is movably attached to said shell by meansof a number of operatively overlap# ping shutliing leaves engagingly interposed to connect said chimney and said shell and and adapted to interpose the crater of said lamp between said reiector and said focal aperture, and means for centering and adj usting the crater of said lamp to the radial adapted to shuiiiingly reciprocate upon oney if focus of'said reflector, substantially as dej-v Y scribed. i

3. In adjustable iiood andA spot light chimwhich is provided with a suitable aperture, ofv a chimney leading from saidaperture and formed of a sleeve which is provided with a tangent slot and a telescoping sleeve which is provided with a lug which projects through said slot and which lug is provided *neys the combination with a lantern shell V with a thumbscrew andl is adapted to recipi rocate in said slot to provide a combined rotating and longitudinal `.motion to said sleeve, a hood which is fixed to said sleeve and provides a Ventilating aperture between the under surface of said hood and the adjacent periphery .of said sleeve, a plate secured to the lower periphery lof lsaid tele scoping sleeve, and is provided with a lug, an overlapping plate which is secured' to said shell and 1s. provided with a slot and is adapted to register with said lug and permit a reciprocating movement of said'flug and means for sliding said chimney longitudinally across said chimney aperture in said shell substantially as described. 4. In flood and spot lights the combinawith a focal aperture, a closure opposed to said focal aperture, a series of slots near said closure, a chimney disposed between said focal aperture and said closure and a lamp disposed under said chimney, of an adjustable reflector Within said shell vand backed against seid closure and opposingly facing?` said lamp and focal aperture, a series of lugs fixed to the periphery of said reiector and extending movably through said slots and provided with thumbserews, a socket fixed to the center of the rear surface of said reflector and adapted to receive the ball-like end of a threaded rod, said threaded rod passing through a correspondingly threaded 15 aperture rovded in said closure and provided wit adapted to revolve said threaded rod for as described.

Witness our signatures at Chicago, I11iy nois October, A. D. 1914.

WILLIAM J. DAVIS, Jn. ALBERT P. NIRDLINGER. Witnesses: v

Romo TEMPONI, V. C. Fmnnmin.

a Wheel-like handle which isy 

